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-rw-r--r--src/test/ui/empty/empty-never-array.stderr12
1 files changed, 11 insertions, 1 deletions
diff --git a/src/test/ui/empty/empty-never-array.stderr b/src/test/ui/empty/empty-never-array.stderr
index f1be4a6edec..6608ad763b2 100644
--- a/src/test/ui/empty/empty-never-array.stderr
+++ b/src/test/ui/empty/empty-never-array.stderr
@@ -11,6 +11,16 @@ LL | | }
 LL |       let Helper::U(u) = Helper::T(t, []);
    |           ^^^^^^^^^^^^ pattern `T(_, _)` not covered
 
+warning[E0381]: use of possibly uninitialized variable: `u`
+  --> $DIR/empty-never-array.rs:12:5
+   |
+LL |     u
+   |     ^ use of possibly uninitialized `u`
+   |
+   = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
+   = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
+
 error: aborting due to previous error
 
-For more information about this error, try `rustc --explain E0005`.
+Some errors have detailed explanations: E0005, E0381.
+For more information about an error, try `rustc --explain E0005`.